Improvement in fanning-mills



A. Y. FELTOIL Fanning-Mill.

l B o 1 m t m Patented Feb. 9,1875.

ATTORNEYS.

THE GRAPHIC C(LPH 0T0 .-L|TH.39 801-1 PARK PLAOE.N.V.

UNITED STATES PATENT Orrron.

ASA Y. FELTON, OF PLAIN VIEW, MINNESOTA.

IMPROVEMENT IN FANNlNG- MlLLS.

Specification forming part of Letters Patent No. 159,569, dated February9, 1875; application filed July 11, 1874.

To all whom it may concern Be it known that I, ASA Y. FELroN, of PlainView, in the county of Wabashaw and State of Minnesota, have invented anew and lmproved Fanning-Mill, of which the following is aspecification:

The invention will first be fully described, and then pointed out in theclaims.

Figure l is a side elevation of my improved fanning-mill, with a detailin section. Fig. 2 is a longitudinal sectional elevation. Fig. 3 is aplan of one of the sieves, and Fig. 4 is a detail of the cam and leverfor working the shaker. Fig. 5 is a detail of the supporting andadjusting apparatus for the sieves.

Similar letters of reference indicate corresponding parts.

A represents the sieve, which I propose to make of sheet metal, makingthe perforations all the same size and farther apart in the upperportion, where the grain is received on it, than in the lower portion,to cause a larger portion to slide along the sieve before fallingthrough, to spread the falling grain more evenly throughout the area ofthe sieve, so that the air will act to better advantage. B representsthe connection of the upper edge of the chute-board O of the sieve withthe grain-board G, from which the grain slides onto it, the saidconnection being so formed that a lip, D, projects over the edge of theboard 0 to prevent the grain and other matters from falling into thejoint, and so that the sieve and the board 0 may turn on the joint torise and fall at the lower part, to vary the descent. The board 0 isconnected to this board by a hook, E. The chute-board O is notperforated, and is employed for chuting the matters a little distancebefore reaching the perforations, in order to make the straws and otherlong matters come to a lying position before reaching the perforations,and thus be more certain to pass over them. F represents the sidepieces, in which the sieves are supported. They are pivoted to the board0 at B, and at the lower end are supported bya board, G, on the upperedge of which the lower sieve rests, being grooved thereat to re ceivethe edge in said groove, as shown at H, and they are shifted-up and downby shifting the board in grooves in the side boards J of \the shaker,and fastened at any point to hold the sieves in the proper descent byslide-bolts K and holes in said boards, several holes being provided atdifferent heights. This board Gr also serves to prevent the air fromgscaping between the sieves and the screws M, and cause it to pass upthrough the meshes of the sieves, by which it is more efficient inseparating the. refuse matters from the grain and carrying them out. Nis the lever, and O the cam by which the shaker is geared to thefanshaft, the shaker being connected to one end of the lever by abracket, P, the lever being arranged outside of the case and pivotednear its middle to the frame-piece Q, by shifting- .points It, andhaving a stud, S, in its other end working in the groove of the cam.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- l. The sieve A, having all its holes of the samesize but cut farthest apart on the upper portion and gradually comingnearer together as they approach the lower end, as and for the purposedescribed.

2. The sieve-supports F, jointed to the headboard at B, thevertically-adjustable board G, with the fastening-bolts K and theshaker, combined and arranged substantially as specified.

ASA Y. FELTON.

Witnesses;

E. S. OAsE, H. P. WILLsoN.

